EP2824419A1 - Cross line laser - Google Patents
Cross line laser Download PDFInfo
- Publication number
- EP2824419A1 EP2824419A1 EP12870766.8A EP12870766A EP2824419A1 EP 2824419 A1 EP2824419 A1 EP 2824419A1 EP 12870766 A EP12870766 A EP 12870766A EP 2824419 A1 EP2824419 A1 EP 2824419A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- laser
- cylindrical lens
- cross line
- lens
- line laser
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/002—Active optical surveying means
- G01C15/004—Reference lines, planes or sectors
Definitions
- the present Utility model relates to a laser device, particularly to a cross line laser.
- cross line lasers are capable of emitting a 360 degree laser line, i.e. the laser line covers the whole plane.
- it is normally required to set one laser module at every 90 degree interval in a plane to implement the 360 degree laser line.
- the diffusion angle of the laser line emitted by every laser module is larger than 90 degrees, approximately ranging from 120 degrees to 150 degrees. Therefore, four identical laser modules are needed altogether.
- the conventional cross line laser occupies a high volume of space and requires high-cost materials.
- the object of the present Utility model is to provide a 360 degree cross line laser with low-occupied space volume, low cost and convenient adjustment.
- the present Utility model provides a cross line laser comprising a shell and a hanging system.
- the hanging system has two laser modules arranged oppositely on the same plane.
- Each laser module comprises a laser device, a collimation device, and a cylindrical lens.
- the cylindrical lens has a high refraction index.
- Lasers emitted by the laser device pass through the collimation device and are incident on the cylindrical lens, and are split by the cylindrical lens to form laser rays with a diffusion angle approximately larger than 180 degrees.
- Horizontal laser rays generated by the two laser modules intersect with each other, so as to form laser rays with a diffusion angle of 360 degrees.
- the laser modules further comprise a lens cone, which successively houses the laser device, the collimation device and the cylindrical lens.
- the laser modules further comprise a laser base housed in the lens cone for clamping the laser device.
- the collimation device further comprises a pressing ring and a lens module.
- the laser modules further comprise an adjustment device for adjusting the cylindrical lens.
- the laser device further comprises an insulation pad and a circuit board of the laser device.
- the cylindrical lens is made of dense lanthanum flint glass, particularly H-ZLaF75.
- the cross line laser provided by the present Utility model can achieve a cross laser line with 360 degree diffusion angle by only using two laser modules. Compared with the prior art, it saves space of two laser modules and reduces costs accordingly. At the same time, this adjustment is more convenient than the prior art.
- Figure 1 is a schematic diagram of one preferred embodiment of the present Utility model.
- FIG. 1 it is a schematic diagram of the cross line laser 100 provided by one preferred embodiment of the present Utility model.
- the cross line laser comprises a shell (not shown) and a hanging system 101.
- the hanging system 101 has two laser modules 110 arranged oppositely on a same plane.
- Each laser module 110 comprises a laser assembly 120, a collimation device 130, a cylindrical lens 140 and a lens cone 150 successively housing the above devices.
- the laser assembly 120 comprises a laser device 121, a laser base 122 housed in one end of the lens cone 150 for clamping the laser device 121, an insulation pad 123 and a circuit board 124 for controlling the laser circuit.
- the collimation device 130 comprises a pressuring ring 131 and a lens module 132.
- the lens module 132 can be made up of convex lens and concave lens with same focal length.
- the lens module can also be made up of combinations of other different forms of lenses.
- the cylindrical lens 140 interconnects with the adjustment device 141 and both of them are housed at the other end of the lens cone 150.
- the adjustment device 141 can be used to adjust the position of the cylindrical lens.
- the cylindrical lens 140 is made of material with high refraction index such as dense lanthanum flint glass.
- the material of cylindrical lens 140 is H-ZLaF75 dense lanthanum flint glass.
- a laser module 110 lasers emitted by the laser device 121 will firstly pass through the lens modules 132 of the collimation device 130 to be collimated. Then the lasers are incident on the cylindrical lens 140. After that they are split by the cylindrical lens 140 to form laser rays with a diffusion angle approximately larger than 180 degrees. Thus, two horizontal laser rays generated by the two laser modules arranged oppositely on a same plane intersect with each other, so as to form laser rays with a diffusion angle of 360 degrees.
- cross line laser 100 By means of the above cross line laser 100, a cross laser line with 360 degree diffusion angle can be created by use of only two laser modules. Compared with the prior art, it saves space and reduces costs accordingly. In addition, the adjustment is more convenient than the prior art because of only using two laser modules.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Lasers (AREA)
- Semiconductor Lasers (AREA)
- Projection Apparatus (AREA)
Abstract
Description
- The present Utility model relates to a laser device, particularly to a cross line laser.
- With the continuous development of cross line lasers and the expansion of their applicability, clients' requirements for cross line lasers are becoming increasingly demanding.
- For example, more and more clients are requiring that cross line lasers are capable of emitting a 360 degree laser line, i.e. the laser line covers the whole plane. However, for conventional cross line lasers, it is normally required to set one laser module at every 90 degree interval in a plane to implement the 360 degree laser line. The diffusion angle of the laser line emitted by every laser module is larger than 90 degrees, approximately ranging from 120 degrees to 150 degrees. Therefore, four identical laser modules are needed altogether. The conventional cross line laser occupies a high volume of space and requires high-cost materials.
- Furthermore, it takes a long time to calibrate the laser line emitted by the four laser modules onto the same plane.
- Therefore, a 360 degree cross line laser with low-occupied space volume, low cost and convenient adjustment is urgently needed.
- In order to overcome the above defects, the object of the present Utility model is to provide a 360 degree cross line laser with low-occupied space volume, low cost and convenient adjustment.
- In order to implement the above object, the present Utility model provides a cross line laser comprising a shell and a hanging system. The hanging system has two laser modules arranged oppositely on the same plane. Each laser module comprises a laser device, a collimation device, and a cylindrical lens. The cylindrical lens has a high refraction index. Lasers emitted by the laser device pass through the collimation device and are incident on the cylindrical lens, and are split by the cylindrical lens to form laser rays with a diffusion angle approximately larger than 180 degrees. Horizontal laser rays generated by the two laser modules intersect with each other, so as to form laser rays with a diffusion angle of 360 degrees.
- Preferably, in the present Utility model, the laser modules further comprise a lens cone, which successively houses the laser device, the collimation device and the cylindrical lens.
- Preferably, in the present Utility model, the laser modules further comprise a laser base housed in the lens cone for clamping the laser device.
- Preferably, in the present Utility model, the collimation device further comprises a pressing ring and a lens module.
- Preferably, in the present Utility model, the laser modules further comprise an adjustment device for adjusting the cylindrical lens.
- Preferably, in the present Utility model, the laser device further comprises an insulation pad and a circuit board of the laser device.
- Preferably, in the present Utility model, the cylindrical lens is made of dense lanthanum flint glass, particularly H-ZLaF75.
- Based on the above settings, the cross line laser provided by the present Utility model can achieve a cross laser line with 360 degree diffusion angle by only using two laser modules. Compared with the prior art, it saves space of two laser modules and reduces costs accordingly. At the same time, this adjustment is more convenient than the prior art.
-
Figure 1 is a schematic diagram of one preferred embodiment of the present Utility model. - The advantages of the present Utility model will be described in detail by reference to the drawings and the embodiments as follows.
- As shown in
Fig. 1 , it is a schematic diagram of thecross line laser 100 provided by one preferred embodiment of the present Utility model. The cross line laser comprises a shell (not shown) and ahanging system 101. - The hanging
system 101 has twolaser modules 110 arranged oppositely on a same plane. Eachlaser module 110 comprises alaser assembly 120, acollimation device 130, acylindrical lens 140 and alens cone 150 successively housing the above devices. - The
laser assembly 120 comprises alaser device 121, alaser base 122 housed in one end of thelens cone 150 for clamping thelaser device 121, aninsulation pad 123 and acircuit board 124 for controlling the laser circuit. - The
collimation device 130 comprises a pressuringring 131 and alens module 132. Thelens module 132 can be made up of convex lens and concave lens with same focal length. The lens module can also be made up of combinations of other different forms of lenses. - The
cylindrical lens 140 interconnects with theadjustment device 141 and both of them are housed at the other end of thelens cone 150. Theadjustment device 141 can be used to adjust the position of the cylindrical lens. Thecylindrical lens 140 is made of material with high refraction index such as dense lanthanum flint glass. In this embodiment, the material ofcylindrical lens 140 is H-ZLaF75 dense lanthanum flint glass. - Through the above settings, in a
laser module 110, lasers emitted by thelaser device 121 will firstly pass through thelens modules 132 of thecollimation device 130 to be collimated. Then the lasers are incident on thecylindrical lens 140. After that they are split by thecylindrical lens 140 to form laser rays with a diffusion angle approximately larger than 180 degrees. Thus, two horizontal laser rays generated by the two laser modules arranged oppositely on a same plane intersect with each other, so as to form laser rays with a diffusion angle of 360 degrees. - By means of the above
cross line laser 100, a cross laser line with 360 degree diffusion angle can be created by use of only two laser modules. Compared with the prior art, it saves space and reduces costs accordingly. In addition, the adjustment is more convenient than the prior art because of only using two laser modules. - It should be noted that the embodiments of the present invention has a preferred implementation, and will not limit the present invention in any form, and any technician skilled in the field may change or modify equivalent effective embodiments by using the above-described technique. Whenever the contents do not depart from the technical proposal in the present invention, any revision or equivalent change and modification of the above embodiments according to the technical substance of the present invention are all in the scope of the technical proposal in the present invention.
Claims (8)
- A cross line laser comprises a shell and a hanging system, characterized in that, the hanging system has two laser modules arranged oppositely on a same plane, each laser module comprises:a laser device, a collimation device, and a cylindrical lens;the cylindrical lens has a high refraction index;lasers emitted by the laser device pass through the collimation device and are incident on the cylindrical lens, and are split by the cylindrical lens to form laser rays with a diffusion angle approximately larger than 180 degrees;horizontal laser rays generated by the two laser modules intersect with each other, so as to form laser rays with a diffusion angle of 3 60 degrees.
- The cross line laser according to claim 1, characterized in that,
the laser modules further comprise a lens cone successively housing the laser device, the collimation device and the cylindrical lens. - The cross line laser according to claim 2, characterized in that,
the laser modules further comprise a laser base housed in the lens cone for clamping the laser device. - The cross line laser according to claim 2, characterized in that,
the collimation device further comprises a pressing ring and a lens module. - The cross line laser according to claim 2, characterized in that,
the laser modules further comprise an adjustment device for adjusting the cylindrical lens. - The cross line laser according to claim 2, characterized in that,
the laser device further comprises an insulation pad and a circuit board of the laser device. - The cross line laser according to claim 1, characterized in that,
the cylindrical lens is made of dense lanthanum flint glass. - The cross line laser according to claim 7, characterized in that,
the material of the cylindrical lens is H-ZLaF75 dense lanthanum flint glass.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201220086899 CN202485675U (en) | 2012-03-09 | 2012-03-09 | Laser line-throwing instrument |
PCT/CN2012/001673 WO2013131224A1 (en) | 2012-03-09 | 2012-12-10 | Cross line laser |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2824419A1 true EP2824419A1 (en) | 2015-01-14 |
EP2824419A4 EP2824419A4 (en) | 2015-11-04 |
Family
ID=46960092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12870766.8A Ceased EP2824419A4 (en) | 2012-03-09 | 2012-12-10 | Cross line laser |
Country Status (4)
Country | Link |
---|---|
US (1) | US9316498B2 (en) |
EP (1) | EP2824419A4 (en) |
CN (1) | CN202485675U (en) |
WO (1) | WO2013131224A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2930464A4 (en) * | 2012-12-06 | 2016-07-27 | Changzhou Huada Kejie Opto Electro Instr Co Ltd | Window module, window and laser line projector having the window |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202485675U (en) * | 2012-03-09 | 2012-10-10 | 常州华达科捷光电仪器有限公司 | Laser line-throwing instrument |
AU2015209315B2 (en) * | 2014-01-23 | 2019-05-30 | Jayson HILL | Adjustable laser leveling device and method |
EP3425334B1 (en) * | 2017-07-07 | 2022-09-07 | Leica Geosystems AG | Laser level |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2637294B2 (en) * | 1990-12-26 | 1997-08-06 | 株式会社東芝 | Sense amplifier circuit |
US5992029A (en) * | 1997-08-14 | 1999-11-30 | Dong; Dawei | Automatic laser plumb line |
JP3522239B2 (en) | 2001-07-02 | 2004-04-26 | 株式会社オーディオテクニカ | Wide angle laser line irradiation apparatus and method |
US20060070251A1 (en) * | 2003-11-12 | 2006-04-06 | Shuming Wu | Line-marking device with rotatable laser |
TWI258569B (en) * | 2004-05-12 | 2006-07-21 | Asia Optical Co Inc | Spectroscope device for side by side laser level |
CN2872305Y (en) * | 2005-06-30 | 2007-02-21 | 南京德朔实业有限公司 | Laser scratcher |
US8104186B2 (en) * | 2007-05-07 | 2012-01-31 | Michael Raschella | Method and system for projecting an aiming X-shaped mark on a target |
CN201242441Y (en) * | 2008-08-08 | 2009-05-20 | 宁波舜宇仪器有限公司 | Rapid regulation-check mechanism for semiconductor laser line-casting instrument |
CN201412731Y (en) * | 2009-06-23 | 2010-02-24 | 陕西硕华光电技术有限责任公司 | Cross-line laser cast line instrument light source |
US20110069322A1 (en) * | 2009-09-21 | 2011-03-24 | Faro Technologies, Inc. | Laser pointing mechanism |
DE102010063938A1 (en) * | 2010-12-22 | 2012-06-28 | Hilti Aktiengesellschaft | Optical system for beam shaping of a laser beam and laser system with such an optical system |
TWI480518B (en) * | 2012-01-17 | 2015-04-11 | Quarton Inc | Laser module with dual laser light and its application of laser sight |
AT512168B1 (en) * | 2012-01-30 | 2013-06-15 | Sola Messwerkzeuge Gmbh | MARKING PROJECTOR |
CN202485675U (en) * | 2012-03-09 | 2012-10-10 | 常州华达科捷光电仪器有限公司 | Laser line-throwing instrument |
EP2789973B1 (en) * | 2013-04-12 | 2017-11-22 | Hexagon Technology Center GmbH | Rotation laser with lens that can be intentionally deformed by actuators |
-
2012
- 2012-03-09 CN CN 201220086899 patent/CN202485675U/en not_active Expired - Lifetime
- 2012-12-10 EP EP12870766.8A patent/EP2824419A4/en not_active Ceased
- 2012-12-10 US US14/381,897 patent/US9316498B2/en active Active
- 2012-12-10 WO PCT/CN2012/001673 patent/WO2013131224A1/en active Application Filing
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2930464A4 (en) * | 2012-12-06 | 2016-07-27 | Changzhou Huada Kejie Opto Electro Instr Co Ltd | Window module, window and laser line projector having the window |
Also Published As
Publication number | Publication date |
---|---|
EP2824419A4 (en) | 2015-11-04 |
WO2013131224A1 (en) | 2013-09-12 |
US20150052763A1 (en) | 2015-02-26 |
CN202485675U (en) | 2012-10-10 |
US9316498B2 (en) | 2016-04-19 |
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